The Orbital Mechanics Podcast
Episodes
Episode 313: Third Take on Venus
16 Jun 2021
Contributed by Lukas
Spaceflight news— ESA spacecraft to join Venusian fleet (space.com) (esa.int) (en.wikipedia.org) (arxiv.org) — Jean-Luc Margot et al recently m...
Episode 312: Hot Take on Venus
09 Jun 2021
Contributed by Lukas
Spaceflight news— Discovery 15 and 16 selected - we’re heading for Venus! (space.com) (spacenews.com)— NASA Presidential Budget Request (planeta...
Episode 311: SALSO Dancing
02 Jun 2021
Contributed by Lukas
Spaceflight news— Megaconstellations in the news — Viasat asking for halt to building out Starlink (spacenews.com) — Chinese Guowang const...
Episode 310: Zhurong Roves
26 May 2021
Contributed by Lukas
Spaceflight news— Zhurong rover dismounts from lander (spacenews.com)Short & Sweet— Rocket Lab failure analysis (spacenews.com) (rocketlabusa....
Episode 309: Positive Thinking
19 May 2021
Contributed by Lukas
Spaceflight news— Rocket Lab Recovery (spacenews.com) (spacenews.com) (rocketlabusa.com) — Scott Manley demonstrated the TVC angle on 2nd stage...
Episode 308: Lunar Twins
12 May 2021
Contributed by Lukas
Spaceflight news— Awards, awards, awards — Eta Space - In-orbit cryogenic refueling (spaceref.com) — JPL - Lunar Crater Radio Telescope (c...
Episode 307: Fire Carried
05 May 2021
Contributed by Lukas
Spaceflight news— Long March 5B set for uncontrolled re-entry (spacenews.com) — The module raised and is maintaining orbit (HT Colin: heavens-a...
Episode 306: What About IV?
28 Apr 2021
Contributed by Lukas
Spaceflight news— Renewable Space Updates (spacenews.com) (spacenews.com)— ACES scrapped, but lives on in Centaur V (spacenews.com) (twitter.com/t...
Episode 305: Moon, Dear
21 Apr 2021
Contributed by Lukas
Spaceflight news— HLS downselection - Starship chosen (PDF: nasa.gov) (twitter.com/jeff_foust) — HLS Base Period Source Selection occurred last...
Episode 304: WRT Raining, Pouring
14 Apr 2021
Contributed by Lukas
Spaceflight news— ISS’s crew of ten (spacepolicyonline.com) (spacenews.com)— Rocket Lab to test booster recovery from space this May (rocketlabu...
Episode 303: Dramatic Concealed Conflagration
07 Apr 2021
Contributed by Lukas
Spaceflight news— Failed data bus on Crew Dragon (HT Kevin Smith: blogs.nasa.gov)— SN11 landing failure (space.com) (twitter.com/Bojay_stellar) (t...
Episode 302: Debris Mayhem
24 Mar 2021
Contributed by Lukas
Spaceflight news— Bill Nelson to be nominated as next NASA head (spacenews.com) (whitehouse.gov)— Debris mayhem — Space Force would hire deor...
Episode 301: Service Update
17 Mar 2021
Contributed by Lukas
Spaceflight news— Ukrainian startup looks at in-orbit servicing (spacenews.com) (kursorbital.com)— Northrup’s MEV-2 prepares for docking attempt...
Episode 300: Nikolas Trawny, Ph. D.
10 Mar 2021
Contributed by Lukas
Spaceflight news— Rocket Lab reveals Neutron, goes public (americaspace.com) (spacenews.com) (rocketlabusa.com)Short & Sweet— Starship burned ...
Episode 299: Dare Mighty Parachutes
03 Mar 2021
Contributed by Lukas
Spaceflight news— Perseverance update! — Parachute message (twitter.com) — MATLAB solution (HT trbinsc in the chat: cdn.discordapp.com...
Episode 298: Tango Delta
24 Feb 2021
Contributed by Lukas
Spaceflight news— Perseverance has landed! (arstechnica.com) (americaspace.com) (spacenews.com) (uahirise.org) — HiRISE managed to snap a photo...
Episode 297: Fleet Arrival
17 Feb 2021
Contributed by Lukas
Spaceflight news— Mars Hope and Tianwen-1 arrive — Great video from Tianwen-1 as it passes its first periareion (twitter.com/AJ_FI) — Tian...
Episode 296: Spectre-2 Incoming
10 Feb 2021
Contributed by Lukas
Spaceflight news— Starship SN9 update (spacenews.com) — Lots of leftover LOX visible on IR footage (youtube.com) — SN8’s FAA violation (...
Episode 295: Storybook Titles
03 Feb 2021
Contributed by Lukas
Spaceflight news— Starship, Elon, and the FAA — SN8 violated launch license (theverge.com) — SN9 had to contend with the outco...
Episode 294: DOWNLINK--Panagiotis Tsiotras II
27 Jan 2021
Contributed by Lukas
Spaceflight news— SLS Green Test hotfire followup (americaspace.com) (spacenews.com) (spaceflightnow.com) (youtube.com)Short & Sweet— SpaceX b...
Episode 293: Spacebots, Roll Out!
20 Jan 2021
Contributed by Lukas
Spaceflight news— ISS to get more solar panels! (space.com) (spacenews.com) (americaspace.com) (nasa.gov) — 2017 Roll-Out Solar Array (ROSA) de...
Episode 292: Ungoogleable
13 Jan 2021
Contributed by Lukas
Spaceflight news— NASA selects four small-scale missions to further develop (nasa.gov) (spacenews.com) — Pioneers program (science.nasa.gov) ...
Episode 291: Loss of Legs
06 Jan 2021
Contributed by Lukas
Spaceflight news— Landing Super Heavy (twitter.com/elonmusk) (reddit.com/r/SpaceXLounge) — Scott Manley covered this technique (youtube.com) —...
Episode 290: Get Out and Push
23 Dec 2020
Contributed by Lukas
Spaceflight news— Astra makes it to space! (twitter.com/lorengrush) (spacenews.com) (space.com) — Orbital parameters (HT Mike Stewart twitter.c...
Episode 289: Fierce Flip
16 Dec 2020
Contributed by Lukas
Spaceflight news— SN8 high-altitude flight (spacenews.com) (youtube.com) (youtube.com) — SNM analysis/discussion (youtube.com) — Accomplis...
Episode 288: Sample Bonanza
09 Dec 2020
Contributed by Lukas
Spaceflight news— Chang’e-5 lunar sampling (spacenews.com) (spacenews.com) (theverge.com) (spaceflight101.com) — Sample transfer happened sho...
Episode 287: Okay With the Hat
02 Dec 2020
Contributed by Lukas
Spaceflight news— Rocket Lab recovery (twitter.com/ChrisG_NSF) — A list of direct quotes from the press conference (twitter.com/Erdayastronaut)...
Episode 286: Rock Blade
25 Nov 2020
Contributed by Lukas
Spaceflight news— SN8 follow-up (twitter.com/elonmusk) (twitter.com/elonmusk) (youtube.com) — Martyte is a ceramic-filled epoxy, used to coat t...
Episode 285: Trench-rich Combustion
18 Nov 2020
Contributed by Lukas
Spaceflight news— Starship SN8 fires a second (and third) time. (space.com) (youtube.com) (twitter.com/elonmusk)— Crew-1 certified (spacenews.com)...
Episode 284: DOWNLINK--Mark Lester
11 Nov 2020
Contributed by Lukas
Spaceflight news— Rocket lab aims to recover booster (spacenews.com) (aerospaceamerica.aiaa.org) (rocketlabusa.com)Short & Sweet— Spacebit doe...
Episode 283: Sample Stowed
04 Nov 2020
Contributed by Lukas
Spaceflight news— Direct lunar water observation (americaspace.com) (spacenews.com) (nature.com)— OSIRIS-REx stores sample (spacenews.com) (astero...
Episode 282: Nightingale Sneeze
27 Oct 2020
Contributed by Lukas
Spaceflight news— OSIRIS-REx completes TAG (americaspace.com) (spacenews.com) (spacenews.com) (spacenews.com) (asteroidmission.org) — Descent v...
Episode 281: International Gateway
20 Oct 2020
Contributed by Lukas
Spaceflight news— NASA and ESA Lunar Gateway contracts awarded (space.com) (spacenews.com) — Airbus and Thales Alenia were also contracted to d...
Episode 280: DOWNLINK--Ella Atkins II
13 Oct 2020
Contributed by Lukas
Spaceflight news— SpaceX Crew-1 mission delayed (spacenews.com) (spacenews.com) — Tom Mueller explained the gas generator cycle, and the Merlin...
Episode 279: Free-Floating Selfie Stick
07 Oct 2020
Contributed by Lukas
Spaceflight news— Tianwen-1 selfie (twitter.com/AJ_FI) — No country’s first Mars mission has ever been an orbiter/lander pair before (eoporta...
Episode 278: DOWNLINK--Panagiotis Tsiotras
30 Sep 2020
Contributed by Lukas
Spaceflight news— NASA science mission delays (spacenews.com) — JWST deployment tests are done! (nasa.gov)Short & Sweet— Blue Origin purs...
Episode 277: Little Nub
22 Sep 2020
Contributed by Lukas
Spaceflight news— Nanoracks ISS airlock is nearly complete (spacenews.com) (youtube.com)— Dynetics HLS mockup arrives at JSC (twitter.com/Dynetics...
Episode 276: DOWNLINK--Baratunde Cola
16 Sep 2020
Contributed by Lukas
Spaceflight news— Cause of ULA’s recent hot-fire abort has been identified. (americaspace.com) (twitter.com/torybruno) — A “routine, ongoin...
Episode 275: First Light Flight
08 Sep 2020
Contributed by Lukas
Spaceflight news— Rocket Lab secretly launches Photon spacecraft (techcrunch.com) (spacenews.com) (space.com)Short & Sweet— SpaceX sets a new ...
Episode 274: DOWNLINK--Peter Beck
01 Sep 2020
Contributed by Lukas
Spaceflight news— Funding secured for NanoFEEP manufacturer Morpheus Space (spacenews.com) (HT Andrew Zdanowicz: defenseone.com) — Liquid eyeli...
Episode 273: Jupiter via SLS?
25 Aug 2020
Contributed by Lukas
Spaceflight news— Europa Clipper might not fly on SLS (spacenews.com)Short & Sweet— Ball Aerospace successfully completes green-fueled smallsa...
Episode 272: DOWNLINK--Caty Pilachowski
19 Aug 2020
Contributed by Lukas
Spaceflight news— Lucy on track for 2021 launch (americaspace.com)— Rocket Lab increases performance (spacenews.com) (PDF: rocketlabusa.com)— NA...
Episode 271: The Dominator
05 Aug 2020
Contributed by Lukas
Spaceflight news— Mars Perseverance and Ingenuity on their way to Mars (spaceflightnow.com) (americaspace.com) — SHERLOC calibration target inc...
Episode 270: A Little to The Left
28 Jul 2020
Contributed by Lukas
Spaceflight news— Progress MS-15 encounters KURS docking issue (rocketrundown.com) (russianspaceweb.com) (youtube.com)Short & Sweet— Astra wil...
Episode 269: DOWNLINK--Kathryn Crowe
22 Jul 2020
Contributed by Lukas
Spaceflight news— Dream Chaser trunk, Shooting Star, finds its own life (americaspace.com) (sncorp.com) (space.com)Short & Sweet— Hayabusa2 no...
Episode 268: 80 Corrective Actions
14 Jul 2020
Contributed by Lukas
Spaceflight news— Starliner has more work to do (americaspace.com) (spacenews.com)— Starship construction update (HT Andrew Z: wccftech.com)Short ...
Episode 267: DOWNLINK--John Z. Kiss
08 Jul 2020
Contributed by Lukas
Spaceflight news— Perseverance launch slips again (spacenews.com) — Centaur has been repaired (twitter.com/thesheetztweetz)Short & Sweet—...
Episode 266: Demo-2 and the Spacewalks
30 Jun 2020
Contributed by Lukas
Spaceflight news— Demo-2 and spacewalks (spacenews.com) (americaspace.com)— Suborbital Crew (spacenews.com)— SpaceShip Two news (spacenews.com)S...
Episode 265: VIPER Will Zoot
24 Jun 2020
Contributed by Lukas
Spaceflight news— Astrobotic to deliver VIPER rover to Moon (spaceflightinsider.com) (nasaspaceflight.com) — Some instruments will fly on earli...
Episode 264: Ad Astra Per Justitia
16 Jun 2020
Contributed by Lukas
Spaceflight news— Loverro misconduct update (wsj.com via marketscreener.com) — Kathy Lueders selected to lead HEO Mission Directorate (twitter....
Black Lives Matter
07 Jun 2020
Contributed by Lukas
Some black voices and hashtags to amplify and listen to— twitter.com/astrotoya— twitter.com/astronaia— twitter.com/astro_eustice— twitter.com/...
Episode 263: Flat Screen
02 Jun 2020
Contributed by Lukas
Spaceflight news— Demo-2 mission: Endeavor docks with ISS (spacenews)(twitter.com/lorengrush) — A bell in Unity is rung twice to announce the a...
Episode 262: No Loverro Lost
26 May 2020
Contributed by Lukas
Spaceflight news— Loverro quit! (spacenews.com) (spaceflightnow.com) (arstechnica.com) (washingtonpost.com)— Crew Dragon launch prep (HT Andrew Z:...
Episode 261: Pessimism Sandwich
19 May 2020
Contributed by Lukas
Spaceflight news— Three-part NASA Lunar News — Plans for Gateway and Artemis undergo refinement (spacenews.com) — NASA advisory committee ...
Episode 260: DOWNLINK--Dan Hegel
12 May 2020
Contributed by Lukas
Spaceflight news— China’s big Long March 5B (Chang Zheng 5B) flight— — The flight (spaceflightnow.com)— — The capsule landing (spaceflight...
Episode 259: Human Moon Landers
05 May 2020
Contributed by Lukas
Spaceflight news— NASA selects companies to develop Human Landing System (HLS) for Artemis (nasaspaceflight.com) (twitter.com/SciGuySpace) — So...
Episode 258: Firefly Payday
28 Apr 2020
Contributed by Lukas
Spaceflight news— Firefly signs Launch Services Agreement with Spaceflight, Inc. (spacenews.com) (spaceflight.com) — Originally autogenously pr...
Episode 257: Ocean of Storms
22 Apr 2020
Contributed by Lukas
Spaceflight news— Intuitive Machines selects lunar landing site (spacenews.com) — Nova-C’s publicity page (intuitivemachines.com) — Maps...
Episode 256: Grappling Hook
14 Apr 2020
Contributed by Lukas
Spaceflight news— Rocket Lab completes successful demonstration of mid-air capture. (rocketlabusa.com) (youtube.com) (spacenews.com) — Tim Dodd...
Episode 255: DOWNLINK--Jordan Noone
07 Apr 2020
Contributed by Lukas
Spaceflight News— Starship SN3 Collapse (space.com) (arstechnica.com) (twitter.com/elonmusk) — RIP Starship Mk1 (twitter.com/NASASpaceflight) ...
Episode 254: XL to The Moon
01 Apr 2020
Contributed by Lukas
Spaceflight news— Gateway Logistics Services Program awarded to SpaceX (arstechnica.com) (spacenews.com) (nasaspaceflight.com) — Dragon XL (you...
Episode 253: Lackluster
24 Mar 2020
Contributed by Lukas
Spaceflight news— Artemis-1 Orion tests complete (spacenews.com) (americaspace.com) — Ships to KSC March 23 (twitter.com/NASAKennedy) — Cu...
Episode 252: Non-Critical
18 Mar 2020
Contributed by Lukas
Spaceflight news— RS-25 Testing (nasaspaceflight.com)— Gateway officially non-critical for Artemis landing (spacenews.com)Short & Sweet— Spa...
Episode 251: 61 Corrective Actions
10 Mar 2020
Contributed by Lukas
Spaceflight news— Starliner update (spacenews.com) (youtube.com)Short & Sweet— Last minute scrub costs Astra the DARPA Challenge (spaceflightn...
Episode 250: This Is Not the Plan
04 Mar 2020
Contributed by Lukas
Spaceflight news— SpaceX plans a mobile service tower (twitter.com/Falcon9Block5) (space.com) — Starship SN-1 suffered pressure failure (twitte...
Episode 249: DOWNLINK--Laura Forczyk on her new book Rise of the Space Age Millennials
26 Feb 2020
Contributed by Lukas
Spaceflight news— InSight’s HP3 to get a lil push (www.dlr.de) (twitter.com/NASAInSight) (mars.nasa.gov)Short & Sweet— JAXA going forward wi...
Episode 248: Four Discoverers
18 Feb 2020
Contributed by Lukas
Spaceflight news— Discovery Program selects four finalists (nasa.gov) (spacenews.com) (spacenews.com)— DAVINCI+ (PDF: hou.usra.edu) (wikipedia.or...
Episode 247: DOWNLINK--Jason Batt
12 Feb 2020
Contributed by Lukas
Spaceflight news— ASAP report on CST-100 Starliner (arstechnica.com) (blogs.nasa.gov)— Astra Space emerges from stealth mode (spacenews.com) (arst...
Episode 246: Cupola Virus
05 Feb 2020
Contributed by Lukas
Spaceflight news— Near-miss of IRAS and GGSE-4 (c4isrnet.com) (spacenews.com) (kiro7.com) (space.com) — Image of post-conjunction trails (twitt...
Episode 245: More 'Splosions
29 Jan 2020
Contributed by Lukas
Spaceflight news— Spaceway-1 batteries (spacenews.com) (spacenews.com)Short & Sweet— Firefly suffers an anomaly on the test stand. (spacenews....
Episode 244: DOWNLINK--Silvia Alba
22 Jan 2020
Contributed by Lukas
Spaceflight news— Crew Dragon In-flight Abort Test successful (youtube.com) — Beautiful views of in-air explosion (twitter.com/SpaceflightNow) ...
Episode 243: Ad Astra Per DARPA
15 Jan 2020
Contributed by Lukas
Spaceflight news— Astra Space obtains launch permits — Three polar launches from Kodiak (apps.fcc.gov) (www.faa.gov) — DARPA launch from W...
Episode 242: DOWNLINK--Dr. Martin Elvis
08 Jan 2020
Contributed by Lukas
Spaceflight news— ISRO confirms plans for Chandrayaan-3 (spacenews.com) — Chandrayaan-2 imagery (nasa.gov)Short & Sweet— SpaceX plans a m...
Episode 241: Clock Kerfuffle
24 Dec 2019
Contributed by Lukas
Spaceflight news— Starliner OFT (nasaspaceflight.com) (collectspace.com) — IR video (twitter.com/NASA) — Re-entry video from the ground (t...
Episode 240: Nightingale
17 Dec 2019
Contributed by Lukas
Spaceflight news— Rocket Lab inaugurates LC 2 at Wallops. (spacenews.com) — Reuse footage from Running Out of Fingers (youtu.be)— OSIRIS-Rex ...
Episode 239: DOWNLINK--Kyla Edison
11 Dec 2019
Contributed by Lukas
Sorry about the links not working! Squarespace knows about the issue, but still hasn’t fixed it. Visit theorbitalmechanics.com/show-notes/kyla-ediso...
Episode 238: Moon Prep
04 Dec 2019
Contributed by Lukas
Sorry there are no links in this episode! Squarespace has broken that feature. Please visit theorbitalmechanics.com/show-notes/moon-prep for links and...
Episode 237: DOWNLINK--Elena Zorzoli Rossi
27 Nov 2019
Contributed by Lukas
Spaceflight news— Starship overpressure explosion (spacenews.com) — Rumors on 4Chan, via Reddit and NSF forum (reddit.com/r/SpaceXLounge)(forum...
Episode 236: Panel jettison
20 Nov 2019
Contributed by Lukas
Spaceflight news— Spacewalk to repair AMS (spacenews.com) (youtube.com) — AMS overview (nasa.gov) — Footage from the EVA — The co...
Episode 235: DOWNLINK--Andrew Rader
12 Nov 2019
Contributed by Lukas
Spaceflight news— Starliner pad abort test complete (spacenews.com) (spaceflightnow.com) — Chute failure caused by misplaced pin (americaspace....
Episode 234: Irregular Nomenclature
05 Nov 2019
Contributed by Lukas
This week in SF history— 29 October 1998: Launch of STS-95 (wikipedia.org) (PDF: nasa.gov)— Next week in 1974: SolidaritySpaceflight news— Upgra...
Episode 233: IAC DC, 2019
29 Oct 2019
Contributed by Lukas
Bit of a weird show this week! No news, tired hosts. We talk about our favorite things from this year’s International Astronautical Congress, and we...
Episode 232: Full Panic Ensued
15 Oct 2019
Contributed by Lukas
This week in SF history— October 17, 1956: Birth of Mae Jemison (wikipedia.org)Spaceflight news— Battery replacement EVAs (americaspace.com)— Co...
Episode 231: Fewer gyros, more problems
08 Oct 2019
Contributed by Lukas
This week in SF history— 2000 October 9: HETE-2, first orbital launch from Kwajalein (wikipedia.org)— Next week in 1956: listen in for an audio cl...
Episode 230: Starship InSight
01 Oct 2019
Contributed by Lukas
This week in SF history— October 1, 1958: NASA begins operations (wikipedia.org) (archives.gov)— Next week in 2000: Sometimes a good explosion is ...
Episode 229: Somewhat Rectilinear
24 Sep 2019
Contributed by Lukas
This week in SF history— September 27 2003: last flight of Ariane 5 G, launching E-Bird — First A5 flight, 1996, failed spectacularly (youtu.be...
Episode 228: Fired up
17 Sep 2019
Contributed by Lukas
This week in SF history— 21 September 1968: Landing of zond 5 (wikipedia.org) (russianspaceweb.com)— Next week in 2003: generic no longerSpaceflig...
Episode 227: Successful Orbiter
10 Sep 2019
Contributed by Lukas
This week in SF history— 12 September 1959: Launch of Luna 2 (wikipedia.org)Spaceflight news— Chandrayaan-2’s successful orbiter mission? (space...
Episode 226: Duricrust
03 Sep 2019
Contributed by Lukas
This week in SF history— 7 September 1914: Birth of James Van Allen (wikipedia.org)— Next week in 1962: cloud-based navigationSpaceflight news— ...
Episode 225: DATA RELAY--Hot Structures
27 Aug 2019
Contributed by Lukas
This week in SF history— August 30, 1931. Birth of Jack Swigert (wikipedia.org)— Next week in 1914: You know what might have killed Swigert….Spa...
Episode 224: Downward Vector
20 Aug 2019
Contributed by Lukas
This week in SF history— August 21, 1959. Little Joe 1 failure (pao.ksc.nasa.gov) (wikipedia.org)Spaceflight news— Linkspace hover test (spacenews...
Episode 223: DOWNLINK--Ella Atkins
14 Aug 2019
Contributed by Lukas
This week in SF history— August 17, 1962: Carl Sagan advocates for sterilizing spacecraft (spacemedicineassociation.org) (PDF: pnas.org)Spaceflight ...
Episode 222: Heat Sunk
06 Aug 2019
Contributed by Lukas
This week in SF history— 9 August 2005: Landing of STS-114 (wikipedia.org)(space.com)Spaceflight news— Cause of GOES-17 satellite issue identified...
Episode 221: Soul Source
30 Jul 2019
Contributed by Lukas
This week in SF history— 30 July 2008, first full firing of a Falcon 9 with all nine engines (spacex.com)Spaceflight news— NASA issues rare sole s...
Episode 220: DOWNLINK--Ron Burkey
24 Jul 2019
Contributed by Lukas
This week in SF history— 25 July 1962: Statement of work issued for LEM (hq.nasa.gov)Spaceflight news— Crew Dragon Explosion Conclusion (spaceflig...
Episode 219: Future Imperfect
16 Jul 2019
Contributed by Lukas
This week in SF history— 18 July 1980: first successful launch of SLV, lofting Rohini RS-1 to orbit. (wikipedia.org)(wikipedia.org)Spaceflight news—...
Episode 218: Low-flying Starlink
10 Jul 2019
Contributed by Lukas
This week in SF history— 10 July, 1992: Giotto flies past 26P/Grigg-Skjellerup (wikipedia.org) — Ten instruments onboard (nature.com) — Ma...
Episode 217: Ms. Tree Snags the Fly!
03 Jul 2019
Contributed by Lukas
This week in SF history— July 2, 1952: birth of Linda Godwin (wikipedia.org) — STS-37 (wikipedia.org) — STS-59 (wikipedia.org) — STS-...
Episode 216: Look to Windward
26 Jun 2019
Contributed by Lukas
This week in SF history— 28 June 1969. First flight of Black Arrow (wikipedia.org)Spaceflight news— Upcoming non-Earth science missions — 201...
Episode 215: Shibboleth
18 Jun 2019
Contributed by Lukas
This week in SF history— 22 June 1978. Discovery of Pluto’s moon Charon by John Christy (wikipedia.org)Spaceflight news— Psyche review/preview (...